/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:26:13,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:26:13,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:26:13,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:26:13,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:26:13,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:26:13,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:26:13,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:26:13,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:26:13,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:26:13,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:26:13,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:26:13,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:26:13,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:26:13,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:26:13,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:26:13,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:26:13,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:26:13,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:26:13,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:26:13,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:26:13,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:26:13,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:26:13,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:26:13,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:26:13,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:26:13,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:26:13,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:26:13,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:26:13,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:26:13,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:26:13,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:26:13,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:26:13,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:26:13,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:26:13,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:26:13,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:26:13,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:26:13,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:26:13,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:26:13,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:26:13,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 06:26:13,630 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:26:13,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:26:13,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:26:13,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:26:13,633 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:26:13,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:26:13,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:26:13,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:26:13,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:26:13,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:26:13,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:26:13,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:26:13,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:26:13,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:26:13,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:26:13,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:26:13,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:26:13,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:26:13,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:26:13,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:26:13,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:26:13,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:26:13,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:26:13,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:26:13,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:26:13,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:26:13,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:26:13,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:26:13,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:26:13,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:26:13,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:26:13,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:26:13,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:26:13,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:26:13,984 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:26:13,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-22 06:26:14,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72e06bde1/838e75585f9f4331bf3e136f270d34aa/FLAG3371de545 [2020-08-22 06:26:14,543 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:26:14,544 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-22 06:26:14,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72e06bde1/838e75585f9f4331bf3e136f270d34aa/FLAG3371de545 [2020-08-22 06:26:14,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72e06bde1/838e75585f9f4331bf3e136f270d34aa [2020-08-22 06:26:14,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:26:14,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:26:14,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:26:14,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:26:14,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:26:14,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:26:14" (1/1) ... [2020-08-22 06:26:14,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fb4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:14, skipping insertion in model container [2020-08-22 06:26:14,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:26:14" (1/1) ... [2020-08-22 06:26:14,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:26:14,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:26:15,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:26:15,437 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:26:15,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:26:15,569 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:26:15,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15 WrapperNode [2020-08-22 06:26:15,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:26:15,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:26:15,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:26:15,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:26:15,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... [2020-08-22 06:26:15,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:26:15,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:26:15,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:26:15,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:26:15,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:26:15,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:26:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:26:15,726 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-22 06:26:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-22 06:26:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-22 06:26:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-22 06:26:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-22 06:26:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-22 06:26:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-22 06:26:15,729 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-22 06:26:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-22 06:26:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-22 06:26:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 06:26:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 06:26:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-22 06:26:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-22 06:26:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-22 06:26:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-22 06:26:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-22 06:26:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-22 06:26:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-22 06:26:15,732 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 06:26:15,733 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 06:26:15,734 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 06:26:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 06:26:15,735 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 06:26:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:26:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:26:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:26:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 06:26:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 06:26:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 06:26:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-22 06:26:15,737 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-22 06:26:15,738 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 06:26:15,739 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-22 06:26:15,740 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-22 06:26:15,741 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-22 06:26:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-22 06:26:15,742 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 06:26:15,743 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 06:26:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 06:26:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 06:26:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 06:26:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:26:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:26:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:26:16,954 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:26:16,954 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-22 06:26:16,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:26:16 BoogieIcfgContainer [2020-08-22 06:26:16,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:26:16,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:26:16,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:26:16,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:26:16,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:26:14" (1/3) ... [2020-08-22 06:26:16,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686de5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:26:16, skipping insertion in model container [2020-08-22 06:26:16,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:26:15" (2/3) ... [2020-08-22 06:26:16,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686de5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:26:16, skipping insertion in model container [2020-08-22 06:26:16,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:26:16" (3/3) ... [2020-08-22 06:26:16,970 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-22 06:26:16,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:26:16,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:26:17,003 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:26:17,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:26:17,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:26:17,033 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:26:17,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:26:17,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:26:17,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:26:17,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:26:17,034 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:26:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-22 06:26:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:26:17,079 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:26:17,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:26:17,081 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:26:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:26:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-22 06:26:17,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:26:17,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768944013] [2020-08-22 06:26:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:26:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:17,895 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:26:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:26:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:17,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:26:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:17,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:26:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:26:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:26:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:26:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:26:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:26:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:26:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:26:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:26:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:26:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:26:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:26:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:26:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:26:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:26:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:26:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:26:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:26:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:26:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:26:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:26:18,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768944013] [2020-08-22 06:26:18,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:26:18,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:26:18,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963057574] [2020-08-22 06:26:18,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:26:18,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:26:18,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:26:18,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:26:18,453 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-22 06:26:18,809 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 06:26:18,949 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-22 06:26:19,222 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:26:19,419 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:26:26,561 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-22 06:26:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:26:26,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-22 06:26:26,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:26:26,603 INFO L225 Difference]: With dead ends: 1306 [2020-08-22 06:26:26,604 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 06:26:26,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:26:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 06:26:26,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-22 06:26:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-22 06:26:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-22 06:26:26,804 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-22 06:26:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:26:26,805 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-22 06:26:26,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:26:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-22 06:26:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:26:26,810 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:26:26,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:26:26,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:26:26,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:26:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:26:26,812 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-22 06:26:26,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:26:26,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263558100] [2020-08-22 06:26:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:26:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,133 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:26:27,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:26:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:26:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:26:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:26:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:26:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:26:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:26:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:26:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:26:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:26:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:26:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:26:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:26:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:26:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:26:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:26:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:26:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:26:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:26:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:26:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:26:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:26:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:26:27,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263558100] [2020-08-22 06:26:27,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:26:27,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:26:27,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923020422] [2020-08-22 06:26:27,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:26:27,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:26:27,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:26:27,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:26:27,577 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-22 06:26:27,832 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 06:26:28,198 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:26:28,363 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:34,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:26:34,182 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-22 06:26:34,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:26:34,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-22 06:26:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:26:34,190 INFO L225 Difference]: With dead ends: 1277 [2020-08-22 06:26:34,190 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 06:26:34,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:26:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 06:26:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-22 06:26:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-22 06:26:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-22 06:26:34,285 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-22 06:26:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:26:34,285 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-22 06:26:34,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:26:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-22 06:26:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:26:34,290 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:26:34,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:26:34,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:26:34,291 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:26:34,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:26:34,291 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-22 06:26:34,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:26:34,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129393176] [2020-08-22 06:26:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:26:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,678 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:26:34,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:26:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:26:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:26:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:26:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:26:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:26:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:26:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:26:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:26:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:26:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:26:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:26:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:26:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:26:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:26:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:26:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:26:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:26:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:26:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:26:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:26:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:34,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:26:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:26:35,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129393176] [2020-08-22 06:26:35,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:26:35,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:26:35,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825715284] [2020-08-22 06:26:35,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:26:35,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:26:35,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:26:35,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:26:35,093 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-22 06:26:35,426 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:26:35,574 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:35,815 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:42,467 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 06:26:42,646 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-22 06:26:47,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:26:47,490 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-22 06:26:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 06:26:47,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-22 06:26:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:26:47,501 INFO L225 Difference]: With dead ends: 1991 [2020-08-22 06:26:47,501 INFO L226 Difference]: Without dead ends: 1532 [2020-08-22 06:26:47,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:26:47,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-22 06:26:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-22 06:26:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 06:26:47,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-22 06:26:47,676 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-22 06:26:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:26:47,676 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-22 06:26:47,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:26:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-22 06:26:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:26:47,682 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:26:47,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:26:47,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:26:47,683 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:26:47,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:26:47,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-22 06:26:47,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:26:47,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987783834] [2020-08-22 06:26:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:26:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,052 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:26:48,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:26:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:26:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:26:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:26:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:26:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:26:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:26:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:26:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:26:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:26:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:26:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:26:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:26:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:26:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:26:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:26:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:26:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:26:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:26:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:26:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:26:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:26:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:26:48,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987783834] [2020-08-22 06:26:48,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:26:48,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 06:26:48,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856750071] [2020-08-22 06:26:48,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:26:48,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:26:48,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:26:48,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:26:48,605 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-22 06:26:48,987 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:26:49,168 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:26:57,008 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-22 06:26:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:26:57,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-22 06:26:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:26:57,021 INFO L225 Difference]: With dead ends: 2455 [2020-08-22 06:26:57,021 INFO L226 Difference]: Without dead ends: 1521 [2020-08-22 06:26:57,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:26:57,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-22 06:26:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-22 06:26:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 06:26:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-22 06:26:57,233 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-22 06:26:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:26:57,233 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-22 06:26:57,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 06:26:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-22 06:26:57,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:26:57,237 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:26:57,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:26:57,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:26:57,238 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:26:57,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:26:57,238 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-22 06:26:57,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:26:57,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424101079] [2020-08-22 06:26:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:26:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,605 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:26:57,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:26:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:26:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:26:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:26:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:26:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:26:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:26:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:26:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:26:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:26:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:26:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:26:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:26:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:26:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:26:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:26:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:26:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:26:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:26:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:26:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:26:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:57,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:26:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:26:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:26:58,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424101079] [2020-08-22 06:26:58,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:26:58,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 06:26:58,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512547959] [2020-08-22 06:26:58,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:26:58,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:26:58,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:26:58,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:26:58,133 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-22 06:26:58,518 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:26:58,703 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:26:58,957 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:27:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:27:04,545 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-22 06:27:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:27:04,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-22 06:27:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:27:04,555 INFO L225 Difference]: With dead ends: 2451 [2020-08-22 06:27:04,555 INFO L226 Difference]: Without dead ends: 1517 [2020-08-22 06:27:04,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:27:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-22 06:27:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-22 06:27:04,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-22 06:27:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-22 06:27:04,726 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-22 06:27:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:27:04,726 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-22 06:27:04,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 06:27:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-22 06:27:04,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-22 06:27:04,730 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:27:04,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:27:04,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:27:04,731 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:27:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:27:04,731 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-22 06:27:04,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:27:04,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734944005] [2020-08-22 06:27:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:27:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,071 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 06:27:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:27:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:27:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:27:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:27:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:27:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:27:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:27:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:27:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 06:27:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:27:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:27:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:27:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:27:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 06:27:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 06:27:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:27:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 06:27:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:27:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 06:27:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 06:27:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-22 06:27:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 06:27:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:27:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:27:05,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734944005] [2020-08-22 06:27:05,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:27:05,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 06:27:05,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192180886] [2020-08-22 06:27:05,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:27:05,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:27:05,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:27:05,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:27:05,434 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-22 06:27:05,691 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 06:27:05,818 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:27:05,992 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-22 06:27:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:27:12,547 INFO L93 Difference]: Finished difference Result 2447 states and 3700 transitions. [2020-08-22 06:27:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:27:12,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-22 06:27:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:27:12,559 INFO L225 Difference]: With dead ends: 2447 [2020-08-22 06:27:12,559 INFO L226 Difference]: Without dead ends: 1513 [2020-08-22 06:27:12,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:27:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states.